Fix conditional on ansible_vault_in_place_copy

When ansible_vault_in_place_copy is supploed as extra var it is
not always treated a False properly, still messing up with conditions

Using bool filter help to eliminate such behaviour.

Also reduce verbosity of blockinfile loop by using loop label.

Change-Id: Iafaf53c77288d8f45b0bf0ddd99fe242a9f6e7cb

Author: Dmitriy Rabotyagov

encrypt_secrets/roles/ansible_vault/tasks/ansible_vault_strings.yml

@@ -76,7 +76,7 @@
       when:
         - _secrets is defined
         - _secrets | length > 0
-        - ansible_vault_in_place_copy
+        - ansible_vault_in_place_copy | bool
 
     - name: Place encrypted secrets in independent blocks
       ansible.builtin.blockinfile:
@@ -85,10 +85,12 @@
         marker: "# {mark} ANSIBLE MANAGED {{ item.item['key'] }}"
         mode: "0600"
       loop: "{{ new_secrets.results }}"
+      loop_control:
+        label: "{{ item.item['key'] }}"
       when:
         - _secrets is defined
         - _secrets | length > 0
-        - not ansible_vault_in_place_copy
+        - not ansible_vault_in_place_copy | bool
 
     - name: Undefine the secrets variable
       ansible.builtin.set_fact: